Bluelab Probe Care Kit pH + Conductivity Elite 91 holding the damper firmly in

holding the damper firmly in place

one card per packet

3 cu ft grow bag

it stimulates the internal biological processes that lead to larger

Replacement plugs are available

Bluelab Probe Care Kit pH + Conductivity Elite 91 holding the damper firmly inEverything you need to clean, hydrate and calibrate pH probes as well as clean and test conductivity (ppm EC) probes. The instrument is only as accurate as the probe is clean! Probe cleaning is one of the most important parts of owning and operating any Bluelab meter, monitor or controller. The probe surface is where the instrument takes the reading of the solution or soil media. If the probe face is dirty or contaminated, then the reading will be